2 * Copyright (c) 2010-2021 Contributors to the openHAB project
4 * See the NOTICE file(s) distributed with this work for additional
7 * This program and the accompanying materials are made available under the
8 * terms of the Eclipse Public License 2.0 which is available at
9 * http://www.eclipse.org/legal/epl-2.0
11 * SPDX-License-Identifier: EPL-2.0
13 package org.openhab.binding.teleinfo.internal.reader.io.serialport;
15 import org.eclipse.jdt.annotation.NonNullByDefault;
18 * The {@link FrameUtil} class defines a utility class for {@link FrameCbetmLong}.
20 * @author Nicolas SIBERIL - Initial contribution
23 public class FrameUtil {
26 // private constructor (utility class)
30 * Compute the checksum of the given group line.
32 * @param groupLine group line ("etiquette" <SPACE> "valeur"). Note: the SPACE before the checksum of the group line
33 * must not include in checksum computation.
34 * @return the checksum of the given group line.
36 public static char computeGroupLineChecksum(final String label, final String value) {
37 final String groupLine = label + " " + value;
39 for (int i = 0; i < groupLine.length(); i++) {
40 sum = sum + groupLine.codePointAt(i);
42 sum = (sum & 0x3F) + 0x20;